Arrangement method of grain ventilation air duct

Abstract

The invention is applicable to the technical field of grain ventilation, and provides an arrangement method of a grain ventilation air duct. The method includes the steps that the ventilation air duct shaped like a Chinese character 'jing' is paved by using grain bags filled with grains; the grain bags filled with the grains cover on the paved ventilation air duct shaped like the Chinese character 'jing' to form a closed ventilation air duct with openings in the periphery; and the closed ventilating duct is ventilated and cooled. According to the arrangement method of the grain ventilation air duct, a traditional measure that a mechanical device is adopted for arranging the ventilation air duct is changed, and the grain bags filled with the grains are directly adopted for building the ventilation air duct, so that the built ventilation air duct is communicated all around, and circulation of air flow is facilitated. Compared with the prior art, the arrangement method has the beneficial effects that the ventilation efficiency is high, and the grain storage loss is small; the ventilation air duct is formed by building the grain bags filled with the grains, so that a large machine can transfer the grains conveniently; and the method is in low investment cost, convenient in operation, time-saving and labor-saving in arrangement, and suitable for popularization in novel agricultural operation subjects such as large grain planting households, family farms, professional collaborats and grain collection, storage and processing enterprises, and the like.

Description

technical field [0001] The invention belongs to the technical field of grain ventilation, and in particular relates to a method for arranging grain ventilation ducts. Background technique [0002] Post-harvest food losses are a global problem. As a major grain producing country, China suffers from serious grain loss after harvest, and grain loss during storage accounts for a relatively high proportion of post-harvest loss. During the storage of grain, due to respiration, heat is produced and part of the water is evaporated. If the temperature is not cooled and dehumidified in time, the mold and deterioration of the grain will be accelerated. At present, the commonly used measures are mechanical ventilation and cooling grain storage technology. The ventilation system is mainly composed of ventilators and ventilation ducts arranged on the ground of the granary. The ventilators are used to make the external low-temperature air pass through the grain piles through the ventilati...

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Problems solved by technology

[0003] However, underground ventilated cages have high requirements for granary infrastructure. For some family farms, professional cooperatives, and small and medium-sized grain storage and processing enterprises, the construction is more complicated, and the storage cost is high, which is not conducive to promotion; while the adjustable above-ground ventilated cage carries grain. The pressure is limited, and it is easy to deform, which affects the effect of ventilation and heat dissipation on the grain, and it is easy to be damaged when the grain is transported by large machinery, and the maintenance cost is high

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